Home / 18,221.84-27,332.28-5,075.12

Finding the Fourth Proportional to 18,221.84, 27,332.28 and 5,075.12

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Solution

The fourth proportional to 18,221.84, 27,332.28 and 5,075.12 is: 7,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.84 : 27,332.28 = 5,075.12 : x
  2. Step 2: Convert to fraction form
    18,221.84/27,332.28 = 5,075.12/x
  3. Step 3: Cross multiply
    18,221.84x = 27,332.28 × 5,075.12
  4. Step 4: Simplify right side
    18,221.84x = 138,714,600.87
  5. Step 5: Solve for x
    x = 138,714,600.87/18,221.84
  6. Step 6: Final answer
    x = 7,612.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.